Hey I was just wondering if it would be safe to jump with my 4" lowering kit i bought for the front..... thanks

 

Try to keep the jumping to a minimum. Most lowering kits say specifically that they are not designed for jumping. Not only due to the change in leverage and having an piece of aluminum with a bunch of stress on it already, but also that because it's putting a lot more leverage on your shocks, and with about half the suspension travel you used to have, you'll land on your frame every time.